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Quantification of restitution dispersion from the dynamic changes of the T-wave peak to end, measured at the surface ECG.

Abstract:

Action potential duration restitution (APDR) curves present spatial variations due to the electrophysiological heterogeneities present in the heart. Enhanced spatial APDR dispersion in ventricle has been suggested as an arrhythmic risk marker. In this study, we propose a method to noninvasively quantify dispersion of APDR slopes at tissue level by making only use of the surface electrocardiogram (ECG). The proposed estimate accounts for rate normalized differences in the steady-state T-wave p...

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Publisher copy:
10.1109/tbme.2010.2097597

Authors


Journal:
IEEE transactions on bio-medical engineering More from this journal
Volume:
58
Issue:
5
Pages:
1172-1182
Publication date:
2011-05-01
DOI:
EISSN:
1558-2531
ISSN:
0018-9294
Language:
English
Keywords:
Pubs id:
pubs:375993
UUID:
uuid:0ccd5acf-4144-4017-8f03-3e8b26eefa4d
Local pid:
pubs:375993
Source identifiers:
375993
Deposit date:
2013-11-16

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